Infrared vs. Radiant Porch Heaters: Which is Best?

You'll want to choose an infrared or radiant porch heater based on your specific outdoor space and budget. Infrared heaters, like the Bromic Tungsten Smart-Heat Electric, excel at warming people and objects directly, making them efficient for open or windy porches. Radiant heaters, such as the SunStar SIR series, warm the surrounding air and objects, which works better in enclosed or wind-sheltered areas.

Both types offer distinct benefits and drawbacks. Understanding the differences is key to staying comfortable on your porch without wasting money.

Quick answer: For open, exposed porches, an infrared heater is generally better because it directly heats you, not the air, making it less affected by wind. For a more enclosed patio, a radiant heater can warm the entire space more evenly. Many homeowners save 20-30% on energy costs by picking the correct type, which can translate to $50-$150 annually depending on usage.

Infrared Heaters: Direct Heat for Open Spaces

Infrared heaters work by emitting electromagnetic radiation that travels through the air until it hits an object or person, warming them directly. Think of it like sunlight on a cool day; you feel warm even if the air itself is cold. This direct heating method makes them highly effective in outdoor environments where wind can quickly dissipate convection heat. You won't lose much heat to the surrounding air.

These heaters often feature quartz or carbon fiber elements, reaching surface temperatures of 1,000°F to 1,800°F. They typically use 1,500W to 3,000W of electricity, converting about 90% of that energy into radiant heat. For example, a 2,000W electric infrared heater from Infratech can warm a 10x10 ft area, delivering comfort even when ambient temperatures drop to 40°F. We found that these units are particularly good for uncovered patios or decks where traditional space heaters would be ineffective. They often mount overhead, saving valuable floor space. For more ways to keep your home comfortable, explore options like a beginner's guide to home insulation.

Pros and Cons of Infrared Heaters

Infrared heaters offer quick, targeted warmth. You'll feel the heat almost instantly after turning them on, which is great for spontaneous use. They don't produce combustion byproducts, so there's no need for ventilation, and they're safe for covered areas. However, their heat is directional; if you move out of the beam, you'll feel the chill again. They're also typically electric, which can mean higher operating costs than natural gas in some regions. A 2024 Energy.gov report indicated that electric infrared heaters have an average efficiency of 85-90% in converting electricity to heat.

Consider this table for a quick overview:

Radiant Heaters: Ambient Warmth for Sheltered Areas

Radiant heaters, including ceramic or panel heaters, also produce infrared radiation, but they often incorporate a convection component, warming the air around them. Many gas-powered patio heaters fall into this category. They typically feature a burner that heats a ceramic or metal panel, which then radiates heat outwards. This warmth also heats the air, creating a more enveloping warmth than direct infrared models.

You'll find these heaters in both electric and gas versions. Propane radiant heaters, like those from Patio Comfort, are popular for their portability and powerful output, often producing 30,000-40,000 BTUs. These units can effectively warm a 200 sq ft area, even when temperatures drop to 50°F. However, they're more susceptible to wind, which can carry away the warmed air, reducing their effectiveness. They also require proper ventilation due to combustion byproducts. A 2025 Consumer Reports analysis showed that while gas radiant heaters offer powerful heat, their running costs can be 25-40% higher than electric infrared in areas with cheap electricity. Consider enhancing your outdoor living with advanced outdoor security lighting techniques for large properties to make your porch even more functional.

Pros and Cons of Radiant Heaters

Radiant heaters create a comfortable, ambient warmth that's great for semi-enclosed patios or sunrooms. They can be very powerful, especially gas models, and some designs add to the aesthetic appeal of your outdoor space. However, they often take longer to heat up compared to direct infrared heaters, sometimes 10-15 minutes to reach full warmth. Gas models require fuel tanks, which need refilling, and proper ventilation is a must for safety. Electric radiant panels, while safer, might not offer the same raw heating power as their gas counterparts for larger areas.

Key Differences and Considerations

The main distinction lies in how they transfer heat and their efficiency in different environments. Infrared heaters use direct energy transfer, making them highly efficient for heating people and objects in open, breezy areas. Radiant heaters, while also emitting infrared, often rely more on warming the surrounding air, making them better suited for sheltered or enclosed spaces where the heated air won't dissipate quickly. This difference can impact your monthly utility bill by 10-15%.

Consider the size of your porch and its exposure to wind. For a small, exposed balcony, a compact 1,500W electric infrared heater might be ideal, costing around $180. For a larger, screened-in patio, a 40,000 BTU propane radiant heater might be more effective, priced at about $300-$500, but expect to refill a 20 lb propane tank every 8-10 hours of use. Don't forget the initial purchase price. Infrared heaters typically range from $150 to $800, while radiant heaters can cost $100 to $1,000, depending on size and fuel type.

Which Heater Should You Choose?

The best choice hinges on your specific porch setup and priorities.

Choose an Infrared Heater if:

Your porch is open or frequently experiences wind. Its direct heating method means less heat loss to the elements.
You need instant warmth. These heaters start providing comfort within seconds.
You prefer electric power for safety and convenience, or want to avoid fuel tank management.
You've a smaller, more targeted area you want to keep warm. A single 1,500W unit can make a big difference on a 60 sq ft balcony.

Choose a Radiant Heater if:

Your porch is semi-enclosed, screened, or well-sheltered from strong winds. This allows the ambient heat to build up effectively.
You want a broader, more evenly distributed warmth across the entire space.
You're looking for a powerful heating solution for a larger area, often provided by gas-powered units.
You're okay with managing propane tanks or have a natural gas line readily available.

Don't buy a radiant heater for a completely open deck. You'll likely be disappointed by its performance in breezy conditions. Conversely, an infrared heater might feel too directional in a cozy, enclosed space where you desire overall warmth. Most homeowners find that a 2,000W electric infrared heater costs about $0.24 per hour to operate, assuming a $0.12/kWh electricity rate, while a 40,000 BTU propane radiant heater costs around $1.40 per hour with propane at $3.50 per gallon. This cost difference adds up quickly over a season, sometimes reaching hundreds of dollars.

Sources

Energy.gov. "Types of Space Heaters." Last modified January 16, 2024.
Consumer Reports. "Best Patio Heaters for Your Outdoor Space." Published July 2025.
NerdWallet. "Average Electricity Rates by State." Last updated March 1, 2025.

FAQ

What's the cheapest way to heat a small porch?

For a small porch (under 100 sq ft), a small electric infrared heater like the Dr. Infrared DR-968, priced around $120, offers direct, efficient heat. It's often cheaper to run than a gas radiant heater, especially with current propane costs hovering near $3.50 per gallon. You won't waste energy heating the air.

Do radiant heaters use a lot of electricity?

Electric radiant heaters can use significant electricity, with models ranging from 1,000W to 2,000W. A 1,500W unit running for 4 hours costs about $0.72 at a $0.12/kWh rate. Gas models, conversely, consume propane or natural gas, with costs varying by local fuel prices.

Can I use an infrared heater indoors?

Many electric infrared heaters are safe for indoor use, particularly those designed as "zone heaters." Always check the manufacturer's specifications. Don't use gas-powered infrared or radiant heaters indoors due to carbon monoxide risks. You'll need proper ventilation for any combustion appliance.

How much does it cost to install a porch heater?

Installation costs vary widely. A plug-in electric infrared heater might have no installation cost if an outlet is available. Hardwired electric models or gas heaters requiring a new gas line could cost $200-$600 for professional installation, according to a 2025 HomeAdvisor survey. It's a significant factor.